Gm Global Technolgoy Operations, Inc.

Christopher A Gillanders

John L Lahti

William R Cawthorne

Wenbo Wang

Robert Charles Simon, Jr

John F Van Gilder

Leonard G Wozniak

Jon C Miller

Todd R Shupe

Louis A Avallone

Robert J Genslak

Daniel G Bolstrum

Trenton W Haines

Jaehak Jung

Pradeepan Srinivasan

An interface control module includes a link generation module that generates a first link between a provider module and a consumer module. An interface contract module generates an interface contract. The interface contract corresponds to an interface of a product that includes the first link. The interface contract defines the interface based on a bill of materials (BOM). An interface assembly module assembles modules including the provider module and the consumer module to generate the product. An interface viewing module displays logical and physical views of the product on a display at least one of before and after assembly of the product.

Software interface management systems and methods

A cold-start control system for an internal combustion engine includes a heat estimation module, a torque request module and a propulsion torque determination module. The heat estimation module determines an exhaust system temperature and estimates heat required to heat an exhaust system to a predetermined temperature. The torque request module generates a torque request based on the estimated heat. The propulsion torque determination module determines a desired engine torque based on the torque request.

Cold start emission reduction strategy for coordinated torque control systems

A diagnostic cold start emissions control system for an internal combustion engine includes a control module having a calculated engine-out energy module, an engine-out energy residual module, and a diagnostic system evaluation module. The calculated engine-out energy module is in communication with the engine-out energy residual module and is configured to determine an operating engine-out energy flow based on an operating engine torque. The engine-out energy residual module is in communication with the diagnostic system evaluation module and is configured to determine an engine-out energy residual based on the determined engine-out energy flow and an expected engine-out energy flow. The diagnostic system evaluation module is configured to determine whether the determined engine-out energy residual meets a predetermined value indicative of proper cold start emissions control.

Method for on-board diagnosis of cold start emissions reduction control strategy

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Royal Oak, MI, United States of America

Christopher A Gillanders