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Method for obtaining carbon consumption in diesel particulate filter, controller and engine

A particle trap and acquisition method technology, which is applied to the controller and engine, and the acquisition of carbon consumption in the particulate trap, can solve the problem of inability to accurately know the consumption of carbon particles in the DPF, so as to reduce the impact and improve the The effect of accuracy

Active Publication Date: 2015-04-01
WEICHAI POWER CO LTD
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Problems solved by technology

[0005] The technical problem to be solved in this application is to provide a method for obtaining the carbon consumption in the particulate matter trap, so as to solve the technical problem that the consumption of carbon particles in the DPF cannot be accurately known in the prior art. Further, it can also Make DPF exit active regeneration in more appropriate practical situations

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  • Method for obtaining carbon consumption in diesel particulate filter, controller and engine
  • Method for obtaining carbon consumption in diesel particulate filter, controller and engine
  • Method for obtaining carbon consumption in diesel particulate filter, controller and engine

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Embodiment Construction

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the 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.

[0048]The application is applicable to numerous general purpose or special purpose computing device environments or configurations. For example: personal computer, server computer, handheld or portable device, tablet type device, multiprocessor device, distributed computing environment including any of the above devices or devices, etc.

[0049] This application may be described in the general context of computer-executable instructions, such as program modules, being executed by a ...

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Abstract

The invention provides a method for obtaining carbon consumption in a DPF (Diesel Particulate Filter), a controller and an engine. The method is applied to the controller and the engine, and oxygen sensors are respectively arranged on two sides of the diesel particulate filter in the engine. The method includes the steps of: in the case that the rotating speed and load of the engine meet preset triggering conditions during the regeneration process of the DPF, the controller determining the oxygen mass flow on two sides of the DPF at current moment according to the current oxygen concentration on two sides of the DPF detected by the oxygen sensors; computing the mass of carbon granules consumed in the DPF at the current moment according to the oxygen mass flow on two sides of the DPF at the current moment; judging whether time of duration is larger than preset calibration time, and if yes, ending the process. Through the application of the method for obtaining carbon consumption in the DPF, the accuracy rate of computing the consumption of the carbon granules in the DPF can be improved, and the DPF can exit the active regeneration process on more suitable situations.

Description

technical field [0001] The present application relates to the field of diesel engines, in particular to a method for obtaining carbon consumption in a particle trap, a controller and an engine. Background technique [0002] The exhaust particulate matter of the engine mainly contains three components: unburned soot (Soot), organic soluble matter (Soluble organic fractions, SOF) adsorbed on the surface and sulfate, among which the particulate matter is mostly composed of carbon and carbide composed of tiny particles. A particulate filter (DPF) is a particulate filter installed in the exhaust system of a diesel engine that traps particulate matter from the exhaust before it enters the atmosphere. The particle capture technology of DPF is a better method to reduce particulate matter in the exhaust. When the engine exhaust flows through the filter, the particulate matter in the exhaust gas is captured by the filter through the process of interception, diffusion, gravity settlem...

Claims

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Application Information

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IPC IPC(8): F01N11/00F01N9/00
CPCY02T10/40
Inventor 王意宝张军冯海浩苗垒王堃陶建忠王晴晴
Owner WEICHAI POWER CO LTD
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