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Dew point release method for hybrid vehicle nitrogen oxide sensor, and related device

A technology of nitrogen oxides and sensors, applied in engine control, machine/engine, electrical control, etc., can solve problems such as reducing the accuracy of nitrogen oxide concentration data

Inactive Publication Date: 2021-06-25
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the nitrogen oxide sensor is in a non-working state most of the time, reducing the accuracy of the nitrogen oxide concentration data

Method used

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  • Dew point release method for hybrid vehicle nitrogen oxide sensor, and related device
  • Dew point release method for hybrid vehicle nitrogen oxide sensor, and related device
  • Dew point release method for hybrid vehicle nitrogen oxide sensor, and related device

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Embodiment Construction

[0053] An embodiment of the present application provides a dew point release method for a nitrogen oxide sensor of a hybrid vehicle, which is used to improve the accuracy of nitrogen oxide concentration data.

[0054] The technical solutions in this application will be clearly and completely described in conjunction with the drawings in the embodiments of this application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0055] see figure 1 , the present application reasonably provides an embodiment of a dew point release method for a nitrogen oxide sensor of a hybrid vehicle, including:

[0056] 101. The engine controller judges whether the nitrogen oxide sensor is in the dew point state;

[0057] In actual situa...

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PUM

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Abstract

The embodiment of the invention provides a dew point release method for a hybrid vehicle nitrogen oxide sensor. The dew point release method is used for improving the accuracy of current oxide concentration data. The method provided by the embodiment of the invention comprises the steps that an engine controller judges whether the nitrogen oxide sensor is in a dew point state or not; if yes, the engine controller judges whether the engine stops running or not; if yes, the engine controller starts a timer to carry out delay timing; after the delay timing is over, the engine controller secondarily judges whether the engine stops running or not; if yes, the engine controller controls the nitrogen oxide sensor to exit the dew point state; and if not, the engine controller controls the nitrogen oxide sensor to remain in the dew point state.

Description

technical field [0001] The embodiments of the present application relate to the field of engines, and in particular to a dew point release method and a related device for a nitrogen oxide sensor of a hybrid vehicle. Background technique [0002] The concept of sustainable development is becoming more and more popular. In order to protect the environment and protect the existing oil resources, a hybrid diesel engine vehicle has been developed in the energy and power technology of the vehicle to protect the environment. The engine of the diesel engine vehicle Nitrogen oxides will inevitably be produced in the operating state, and excessive discharge of nitrogen oxides will directly lead to air pollution, thereby reducing the quality of the environment. [0003] In the prior art, the diesel engine catalyzes nitrogen oxides through the aftertreatment system, thereby reducing the air pollution caused by the exhaust gas of the diesel engine. The aftertreatment system of the diesel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D29/02G01N25/66
CPCF02D29/02F02D41/3005G01N25/66
Inventor 蔡威寇传富
Owner GUANGXI YUCHAI MASCH CO LTD