US 8,428,789 B2Granted

Enhanced reflash using modular discrimination

AssigneeGM Global Technology Operations LLC

InventorsJeffrey J. Dulzo, Karin L. Turski

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Abstract

An improved system, method, and mechanism for executing and reconfiguring a reflash procedure maintains a vehicle state of charge while avoiding defective reflash operations. In an aspect of the invention, the technique includes receiving a reflash request, i.e., at a controller associated with the vehicle, the reflash request identifying one or more target modules and specifying replacement information. A reflash procedure in accordance with the received request is then begun. However, when and if the charge state of the vehicle drops below a predetermined threshold, the controller modifies the reflash procedure by first categorizing individual ongoing reflash operations and stopping any reflash operations belonging to the second class, while continuing any reflash operations belonging to the first class.

Claims15

Dependent claims

A method of enhancing a reflash procedure via modular discrimination to maintain a vehicle state of charge while avoiding defective reflash operations comprising:

receiving a reflash request, by a controller associated with the vehicle, the reflash request identifying one or more target modules and specifying replacement information;
commencing, by the controller, a reflash procedure in accordance with the received request, wherein the reflash procedure entails execution of a plurality of individual reflash operations;
while performing the reflash procedure, evaluating, by the controller, a charge state of the vehicle to determine whether the charge state of the vehicle has dropped below a predetermined threshold;
and
in response to detecting that the charge state of the vehicle has dropped below the predetermined threshold:
identifying, by the controller, a category for each ongoing individual reflash operation from a set of categories, wherein the set of categories includes a first class and a second class;
modifying, by the controller, the reflash procedure by:
ceasing any reflash operations pertaining to individual ongoing reflash operations identified as belonging to the second class;
and completing any reflash operations pertaining to individual ongoing reflash identified as belonging to the first class.

6 more elements

A non-transitory computer-readable medium, at a controller associated with a vehicle, having thereon computer-executable instructions for enhancing a reflash procedure via modular discrimination to maintain a vehicle state of charge while avoiding defective reflash operations, the instructions comprising instructions for:

receiving a reflash request, the reflash request identifying one or more target modules and specifying replacement information;
commencing a reflash procedure in accordance with the received request, wherein the reflash procedure entails execution of a plurality of individual reflash operations, wherein the plurality of individual reflash operations are classified into categories, the categories including a first class and a second class;
evaluating a charge state of the vehicle to determine whether the charge state of the vehicle has dropped below a predetermined threshold while performing the reflash procedure;
and
in response to detecting that the charge state of the vehicle has dropped below the predetermined threshold:
identifying a category for each ongoing individual reflash operation from a set of categories, wherein the set of categories includes a first class and a second class;
modifying the reflash procedure by:
ceasing any reflash operations pertaining to individual ongoing reflash operations identified as belonging to the second class;
and completing any reflash operations pertaining to individual ongoing reflash identified as belonging to the first class.

6 more elements

Dependencies are inferred from the claim text.