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DPF regeneration trigger control method, terminal equipment and storage medium

A trigger control, DPF technology, applied in mechanical equipment, engine components, combustion engines, etc., can solve problems such as diesel waste, reduce fuel consumption and improve economy.

Pending Publication Date: 2022-01-11
XIAMEN YAXON NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the condition of low-to-medium load operation of the vehicle, the exhaust temperature of the diesel engine is basically below 400°C. At this time, in order to increase the exhaust temperature, it is necessary to actively adopt auxiliary measures inside the diesel engine, such as post-injection, delayed main injection, etc. Combusting extra diesel to increase the exhaust temperature to force DPF regeneration can also be called "forced start of DPF regeneration", but the use of "forced start of DPF regeneration" mode will inevitably lead to waste of diesel

Method used

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  • DPF regeneration trigger control method, terminal equipment and storage medium
  • DPF regeneration trigger control method, terminal equipment and storage medium
  • DPF regeneration trigger control method, terminal equipment and storage medium

Examples

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Embodiment 1

[0033] An embodiment of the present invention provides a DPF regeneration trigger control method, such as figure 1 As shown, the method includes the following steps:

[0034] S1: Set the forced trigger differential pressure value P t and the initial trigger differential pressure value P 0 , where the initial trigger differential pressure value P 0 Less than the forced trigger differential pressure value P t .

[0035] The DPF pressure difference value is the difference between the DPF inlet and outlet pressure values, and the larger the pressure difference value, the more serious the accumulation of particles in the DPF.

[0036] The mandatory trigger pressure difference value is set after the initial trigger pressure difference value increases for a certain period of pressure difference. The size of the above two pressure difference values ​​can be set by those skilled in the art based on experience and experimental results. Such as figure 2 As shown, the P in the figu...

Embodiment 2

[0060] The present invention also provides a DPF regeneration trigger control terminal device, which includes a memory, a processor, and a computer program stored in the memory and operable on the processor. When the processor executes the computer program, the present invention is realized. Steps in the above method embodiment of the first embodiment of the invention.

[0061] Further, as an executable solution, the DPF regeneration trigger control terminal device may be a computing device such as a vehicle-mounted computer or a cloud server. When the vehicle-mounted computer is used as an implementation scheme, it is connected with various vehicle-mounted devices (such as particle catcher DPF, vehicle speed sensor, etc.) Speed, DPF differential pressure value, and control the DPF. The DPF regeneration trigger control terminal device may include, but not limited to, a processor and a memory. Those skilled in the art can understand that the above composition structure of the...

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Abstract

The invention relates to a DPF regeneration trigger control method, terminal equipment and a storage medium. The method comprises the steps that a forced trigger pressure difference value and an initial trigger pressure difference value are set, and the initial trigger pressure difference value is smaller than the forced trigger pressure difference value; a DPF pressure difference value is collected in real time in the vehicle running process, and the following judgment and control are carried out that when the pressure difference value is larger than the forced trigger pressure difference value, a vehicle is controlled to forcibly start DPF regeneration; otherwise, when the pressure difference value is larger than the initial trigger pressure difference value, whether the exhaust temperature of an engine reaches the natural DPF regeneration required temperature or not is judged, and if yes, natural DPF regeneration is triggered; otherwise, according to the condition of a slope of a road ahead, the probability of starting DPF regeneration within the predicted distance in front of the current position of the vehicle is predicted, and if the probability is larger than a probability threshold value, the DPF regeneration is not started; and otherwise, the vehicle is controlled to the forcibly start DPF regeneration. A flexible triggering area has a certain tolerance space, oil consumption of the diesel engine can be reduced, and economical efficiency is improved.

Description

technical field [0001] The invention relates to the field of vehicle intelligent control, in particular to a DPF regeneration trigger control method, terminal equipment and a storage medium. Background technique [0002] DPF (Diesel Particulate Filter) is a filter installed in the diesel engine exhaust system, which can capture particulate matter before it enters the atmosphere and reduce the soot pollution of exhaust gas. As the use time increases, the more particulate matter attached to the DPF filter will increase the exhaust resistance of the diesel engine. At this time, a series of measures must be taken to burn and oxidize the particulate matter, that is, to perform DPF regeneration. [0003] DPF regeneration generally utilizes the high temperature of exhaust gas to oxidize and burn particulate matter. The exhaust gas temperature required for DPF regeneration is 500-650°C before the particles can be oxidized and burned. According to the exhaust isotherm curve of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N3/023F01N11/00F01N13/00
CPCF01N3/023F01N11/00F01N13/00Y02T10/40F01N9/002F01N2900/102F01N2900/08F01N9/005F01N2900/00F01N2900/0601F01N2900/1602F01N2900/1406F01N11/005F01N2900/12F01N2900/1404F01N2900/1606
Inventor 涂岩恺陈远
Owner XIAMEN YAXON NETWORKS CO LTD