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Oxygen sensor regeneration
US9212971B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9212971-B2 |
| Application number | US-201313921512-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 19, 2013 |
| Priority date | Aug 17, 2012 |
| Publication date | Dec 15, 2015 |
| Grant date | Dec 15, 2015 |
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Abstract
Official abstract text for this publication.
Methods and systems for heating an oxygen sensor. One system includes an oxygen sensor and controller. The oxygen sensor includes a heater and an electro-chemical measurement cell and a heater. The controller is coupled to the oxygen sensor and is configured to, for each of a plurality of stages of a regeneration process, determine a predetermined temperature for heating the oxygen sensor to, determine a predetermined internal resistance value of an electro-chemical measurement cell of the oxygen sensor associated with the predetermined temperature, apply a pulse-width-modulated signal to the heater, and monitor an internal resistance of the measurement cell while applying the pulse-width-modulated signal to the heater to determine when the internal resistance of the measurement cell reaches the predetermined internal resistance.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of heating an oxygen sensor, the method comprising: (a) determining, by a controller, a predetermined temperature for heating the oxygen sensor to; (b) determining, by the controller, a predetermined internal resistance value of an electro-chemical measurement cell of the oxygen sensor associated with the predetermined temperature; (c) applying, by the controller, a pulse-width-modulated signal to a heater included in the oxygen sensor; and (d…
Assignees
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Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- F02D41/1454Primary
Mechanical Engineering · mapped topic
- G01M15/104Primary
Physics · mapped topic
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Frequently asked questions
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- What does patent US9212971B2 cover?
- Methods and systems for heating an oxygen sensor. One system includes an oxygen sensor and controller. The oxygen sensor includes a heater and an electro-chemical measurement cell and a heater. The controller is coupled to the oxygen sensor and is configured to, for each of a plurality of stages of a regeneration process, determine a predetermined temperature for heating the oxygen sensor to, d…
- Who is the assignee on this patent?
- Bosch Gmbh Robert
- What technology area does this patent fall under?
- Primary CPC classification F02D41/1454. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Dec 15 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).