Gm Global Technolgoy Operations, Inc.

Aaron B Bloom

Xinyu Du

Shengbing Jiang

Atul Nagose

Lyall Kenneth Winger

Dave G Rich

Haijing Liu

Dewen Kong

Meiyuan Wu

Jan Henning Aase

James Morrison

Qi Zhang

Timothy D Julson

Gary W Taraski

Rod Niner

Jingyuan Liu

Infane Lowe

David Gumpert

Wing-Fai Ha

Gavril Cret

A vehicle, a Multiple Output Dynamically Adjustable Capacity System (MODACS) of the vehicle and a method of operating the MODACS. The MODACS includes a string and a processor. The string is coupled to a grid. A grid voltage is set to a first set point. The processor is configured to detect a change in a state of health of the string and change the grid voltage from the first set point to a second set point in response to the change in the state of health of the string.

System and method for optimizing power delivery in a multiple output dynamically adjustable capacity system battery

An electrical connector is provided. The electrical connector includes a first housing having an outer surface and a second housing configured to receive the first housing, wherein the second housing includes an inner surface configured to contact the outer surface of the first housing. The electrical connector also includes a plurality of sensors configured to monitor a contact between the inner surface and the outer surface and a controller in communication with the plurality of sensors, wherein the controller is configured to determine a position of the first housing relative to the second housing.

Monitoring the position of an electrical connector

Vehicles and related systems and methods are provided for managing an electrical system. One method involves identifying a current condition associated with an energy source coupled to an electrical grid, identifying a current operating state associated with the vehicle electrical system, determining an adjusted control target for the energy source to increase availability of the energy source based at least in part on the current condition and the current operating state, identifying a control scheme for the energy source based at least in part on the current condition associated with the energy source, and autonomously operating the vehicle electrical system in a manner that is influenced by the adjusted control target in accordance with the identified control scheme.

Vehicle systems and methods for increasing energy resource availability

A vehicle system is provided and includes a modular dynamically allocated capacity storage system (MODACS) and an active management module. The MODACS includes blocks of cells. The active management module is configured to: detect a first state of a first block of cells of the blocks of cells; determine whether a safety fault condition exists with the first block of cells based on the first state of the first block of cells; in response to detecting existence of the safety fault condition, isolate the first block of cells from other ones of the blocks of cells; subsequent to isolating the first block of cells, actively discharge and detect a second state of the first block of cells; and based on the second state, continue isolating the first block of cells or reconnecting the first block of cells such that the first block of cells is no longer isolated.

Active safety management systems for modular dynamically allocated capacity storage systems

Methods and systems are provided for evaluating a CAN that includes a CAN bus and a plurality of modules configured to communicate over the CAN bus. A voltage sensor may be provided in electrical communication with the CAN bus. A number (N) of pairs of voltages may be read. Each pair may include a CAN high (CAN-H) value and a CAN low (CAN-L) value. The N pair of voltages may be processed through a comparison of the CAN-H values and the CAN-L values. Whether a fault signature is present in the CAN-H and CAN-L values may be determined from the processing.

Fault isolation for a controller area network

A method of detecting a ground fault in a faulty electronic control unit. A ground fault detection technique executed by a processor is enabled. The processor determines a message count for each respective electronic control unit transmitted during a ground offset condition over a predetermined time period. The message count includes messages communicated within a communication bus having a measured voltage at least a predetermined voltage value above an expected voltage value. The message counts for each respective electronic control unit are normalized. The faulty electronic control unit is identified as a function of the normalized message counts. A fault signal is output to identify the fault electronic control unit.

ECU ground fault isolation for a delay system

A method is disclosed for detecting ground faults in a communications system. The method includes measuring a predetermined number of voltage points; determining if the measured voltage points represent recessive or dominant bits; identifying which of the predetermined number of voltage points represent inter-frame bits and which represent frame data bits based on whether the measured voltage points are recessive or dominant; calculating a maximum average voltage for the inter-frame bits; calculating an average frame voltage for all dominant bits within a frame; determining a high average dominant voltage count based on a number of frames for which the average frame voltage is greater than a high voltage threshold; and determining if a ground fault exists based on the average frame voltage and the high average dominant voltage count.

Detection of ECU ground fault with can bus voltage measurements

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.

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Royal Oak, MI, United States of America

Aaron B Bloom