Primary torque actuator control systems and methods

US8942908B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8942908-B2
Application numberUS-77124410-A
CountryUS
Kind codeB2
Filing dateApr 30, 2010
Priority dateApr 30, 2010
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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An engine control system includes a coordinated torque control (CTC) module, a diagnostic module, and an actuator limiting module. The CTC module determines a first position for a throttle valve of a spark-ignition, internal combustion engine and controls opening of the throttle valve based on the first position. The diagnostic module selectively diagnoses an engine shutdown fault and disables the control of the opening of the throttle valve based on the first position when the engine shutdown fault is diagnosed. The actuator limiting module determines a second position for the throttle valve based on an accelerator pedal position, selects a lesser one of the first and second positions, and selectively limits the opening of the throttle valve to the lesser one of the first second positions when the engine shutdown fault is diagnosed.

First claim

Opening claim text (preview).

What is claimed is: 1. An engine control system comprising: a coordinated torque control module that determines a first position for a throttle valve of a spark-ignition internal combustion engine and that controls opening of the throttle valve based on the first position; a diagnostic module that selectively diagnoses an engine shutdown fault and that disables the control of the opening of the throttle valve based on the first position when the engine shutdown fault is diagnose…

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What does patent US8942908B2 cover?
An engine control system includes a coordinated torque control (CTC) module, a diagnostic module, and an actuator limiting module. The CTC module determines a first position for a throttle valve of a spark-ignition, internal combustion engine and controls opening of the throttle valve based on the first position. The diagnostic module selectively diagnoses an engine shutdown fault and disables …
Who is the assignee on this patent?
Worthing James L, Bauerle Paul A, Gm Global Tech Operations Inc
What technology area does this patent fall under?
Primary CPC classification F02D11/107. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).