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Closed-loop control with bias voltage trigger

A technology of bias voltage and voltage, which is applied in the control field of the input circuit of the oxygen sensor, can solve the problem that the oxygen sensor will not provide reliable measurement values, etc.

Inactive Publication Date: 2014-10-29
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, when the vehicle 100 is initially started, the oxygen sensor 102 may not provide reliable measurements

Method used

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  • Closed-loop control with bias voltage trigger
  • Closed-loop control with bias voltage trigger
  • Closed-loop control with bias voltage trigger

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Embodiment Construction

[0048] The following description is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. For purposes of clarity, the same reference numbers have been used in the drawings to identify similar elements. As used herein, the phrase at least one of A, B, and C should be understood to mean a logical (A or B or C) using a non-exclusive logical or. It should be understood that steps within a method may be executed in different order without altering the principles of the present invention.

[0049] As used herein, the term module refers to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group) and memory, a combinational logic circuit that executes one or more software or firmware programs , and / or other suitable components that provide the described functions.

[0050] The engine control module may connect or disconnect the bias voltage module from the oxygen sensor input...

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Abstract

The invention relates to a closed-loop control provided with a bias voltage trigger. An oxygen sensor circuit comprises an oxygen sensor, a bias voltage module and a switch module. The bias voltage module communicates with the oxygen sensor and generates bias voltage. The switch module selectively connects the bias voltage module to the oxygen sensor.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 140,263, filed December 23, 2008. The disclosure of the aforementioned application is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to the control of the oxygen sensor input circuit. Background technique [0004] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the presently named inventors (to the extent described in the Background section) and aspects of this description that are not otherwise considered prior art at the time of filing are neither expressly nor implicitly admitted to be relevant to the present invention conflicting prior art. [0005] Referring now to FIG. 1 , a vehicle 100 includes an oxygen sensor 102 connected to an engine control module (ECM) 104 . The oxygen sensor 102 determines th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/14
Inventor V·A·怀特M·S·埃莫里P·E·特罗伊穆特
Owner GM GLOBAL TECH OPERATIONS LLC
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