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Oxygen sensor heater control system and method thereof

An oxygen sensor and control system technology, applied in electrical control, engine control, fuel injection control, etc., to solve problems such as contamination of sensor components

Active Publication Date: 2016-12-28
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At this time, if the engine starts, the exhaust gas flowing into the protective pipe is stabilized, and the burning material of the exhaust gas may contaminate the sensor element

Method used

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  • Oxygen sensor heater control system and method thereof
  • Oxygen sensor heater control system and method thereof
  • Oxygen sensor heater control system and method thereof

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Embodiment Construction

[0035] The following description is merely exemplary in nature and is not intended to limit the disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0036] Figure 6 is a schematic diagram of an oxygen sensor heater control system in accordance with a form of an embodiment of the present disclosure.

[0037] refer to Figure 6 , the oxygen sensor heater control system includes an engine 600 , an exhaust gas temperature sensor 620 , a sensor unit 180 , a sensor element 162 , a heater 164 and a control portion 610 .

[0038] Engine 600 may combust fuel in its cylinders and convert movement of pistons into torque. The combusted exhaust gases exit through the exhaust manifold and exhaust line.

[0039] The exhaust gas temperature sensor 620 may sense the temperature of exhaust gas flowing in the exhaust line or exhaust manifold, or a map of predetermined exh...

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Abstract

The invention relates to an oxygen sensor heater control system and a method thereof. The method of oxygen sensor heater control includes: exhausting an exhaust gas by operating an internal combustion engine; and stopping operation of the engine such that the exhaust gas is not discharged. The stopping operation of the engine includes heating a sensor element by operating a heater that is positioned adjacent to the sensor element, and the sensor element is configured to detect a characteristic of the exhaust gas.

Description

[0001] Cross-references to related applications [0002] This application claims the benefit of Korean Patent Application No. 10-2015-0086702 filed on June 18, 2015, the entire contents of which are hereby incorporated by reference. technical field [0003] The present disclosure relates to an oxygen sensor heater control system and a control method thereof. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0005] Generally, an oxygen sensor is installed at a predetermined position of an exhaust manifold and detects an amount of oxygen in exhaust gas, and the oxygen sensor provides the oxygen amount information as feedback information to an engine control unit. [0006] Therefore, the engine control unit can determine whether the air / fuel ratio is lean or rich (low or high) by receiving information from the oxygen sensor, and can control the engine to perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22
CPCF02D41/222F02D2200/0804F02D41/042F02D41/1446F02D41/1494
Inventor 俞在雄朴泰淳
Owner HYUNDAI MOTOR CO LTD
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