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A method and system for triggering dpf active regeneration

An active regeneration, DPF technology, applied in engine components, engine control, combustion engine and other directions, can solve problems such as untimely triggering

Active Publication Date: 2021-02-23
WEICHAI POWER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a method and system for triggering active regeneration of DPF to solve the problem of untimely triggering of active regeneration of DPF based on carbon load

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  • A method and system for triggering dpf active regeneration
  • A method and system for triggering dpf active regeneration
  • A method and system for triggering dpf active regeneration

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Embodiment Construction

[0035]Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0036]In this application, the term "comprising", "comprising" or any other variable is intended to cover non-exclusive contained comprising a series of elements, not only those elements, but also Other elements that are explicitly listed, or include elements inherent to such processes, methods, items, or equipment. In the absence of more restrictions, the elements defined by the statement "include a ...", and there is no additional same elements in the process, method, item, or device including the element.

[0037]By the backgroun...

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Abstract

The present invention provides a method and system for triggering DPF active regeneration. The method is as follows: when the engine is running, record the running time of the engine and periodically detect the average temperature of the DPF; The low temperature duration when the average temperature is less than the temperature threshold; calculate the percentage of the low temperature duration and the running time; if the percentage is greater than the percentage threshold, trigger the DPF active regeneration request. In this solution, when the engine is running, the average temperature of the DPF is periodically detected, and when the running time is equal to the time threshold, the low temperature time during which the average temperature is less than the temperature threshold during the running time is determined, and the percentage of the low temperature time to the running time is calculated. If the percentage is greater than the percentage threshold, a DPF active regeneration request is triggered. The temperature of the DPF is used as the basis for triggering the DPF active regeneration request to ensure timely triggering of the DPF active regeneration request, reducing the fuel consumption of the vehicle and improving the safety performance of the vehicle.

Description

Technical field[0001]The present invention relates to the field of engine technology, and more particularly to a method and system that triggers DPF proactive regeneration.Background technique[0002]With the development of science and technology, environmental protection has become one of the most focused focus of all walks. Especially for the automotive industry, the gas discharged from the engine is required to process the emissions standard.[0003]At present, the national diesel engine has a particle tracer (DPF), and the gas discharged from diesel engine is used to meet the emission standards with DPF. In the DPF, there is usually too much accumulation, and the way to eliminate the way to DPF is the passive regeneration function and active regeneration function of the DPF. The active regeneration function of the DPF is currently triggered: the active regeneration function is triggered according to the carbon charge of the DPF. However, according to the active regeneration function...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N9/00F01N3/025F01N11/00F02D41/30F02D41/02
CPCF01N3/025F01N9/002F01N11/002F02D41/029F02D41/30Y02T10/40
Inventor 冯海浩何乃鹏马广营
Owner WEICHAI POWER CO LTD