Method and device for treating carbon particles in particle trap
A particle trap and treatment method technology, applied in the direction of machine/engine, fuel injection control, engine control, etc., can solve the problems that do not meet the requirements of fuel ignition and cannot effectively remove particles from the particle trap
Active Publication Date: 2021-10-19
WEICHAI POWER CO LTD
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- Application Information
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Problems solved by technology
[0004] However, vehicles do not meet the requirements for fuel ignition under most operating conditions, and particles can only interact with NO, NO 2 A chemical reaction occurs to eliminate particles, and the passive regeneration of the particle trap does not effectively remove the particles from the particle trap
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[0042]In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. 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.
[0043] The term "and / or" in the embodiments of this application describes the association relationship of associated objects, indicating that there may be three types of relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. three conditions. The character " / " generally indicates that the contextual objects are an "or" relationship.
[0044] The terms "first" and "second" are used for descriptive purposes only...
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The invention relates to the technical field of vehicle post-treatment, and discloses a method and device for treating carbon particles in a particle trap. The method comprises the steps that the current operation working condition of a vehicle is obtained after determining that the carbon particles need to be treated based on the carbon load in the particle trap of a vehicle; if the current operation working condition is a target working condition, the target rotating speed of an engine of the vehicle is determined based on current operation parameters of the vehicle; the target working condition comprises driving operation, the current vehicle speed of the vehicle is smaller than a preset vehicle speed, and the current operation parameters comprise the current vehicle speed; or, the target working condition comprises hoisting operation, and the current operation parameters comprise the current output torque of the engine; and under the current operation working condition, after the current original rotating speed of the engine is adjusted to the target rotating speed, fuel oil combustion of the vehicle is controlled, so that the particulate trap conducts active regeneration based on heat of fuel oil combustion.
Description
technical field [0001] The present application relates to the technical field of vehicle aftertreatment, in particular to a method and device for treating carbon particles in a particle trap. Background technique [0002] The operation of a vehicle's engine produces particulate emissions, one of the main pollutants of the engine. In order to reduce the particles emitted into the atmosphere, a particle filter is installed in the vehicle's exhaust system, and the particles are captured by the particle filter before the particle emissions enter the atmosphere, thereby effectively reducing the emission of particles. During the use of the particle filter, as the particles accumulate, the exhaust back pressure of the engine increases, which affects the performance of the engine. Therefore, it is necessary to remove the accumulated particles (carbon particles) in the particle filter in time. [0003] In the related technology, when meeting the requirement of fuel oil ignition, the...
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Login to View More IPC IPC(8): F02D41/02
CPCF02D41/029Y02T10/40
Inventor 李剑李尧祝成祥苏舜华宋永亮王明亮
Owner WEICHAI POWER CO LTD