Engine control method and device

A control device and engine technology, applied in engine control, machine/engine, mechanical equipment, etc., can solve the problems of low engine exhaust treatment stability, poor exhaust control stability, etc.

Active Publication Date: 2021-04-16
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides an engine control method and device to solve the problem of engine heat management effect and exhaust control existing in the prior art Poor stability and low stability of engine exhaust treatment

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  • Engine control method and device
  • Engine control method and device

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Embodiment Construction

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...

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Abstract

The invention provides an engine control method and device. The engine control method comprises the steps that conventional parameters of an engine are obtained; a current engine mode of an engine body is obtained; a variable relation table corresponding to the engine mode is called according to the engine mode; and calculation is carried out based on the conventional parameters and control parameters corresponding to conventional data in the variable relation table, and the required opening degree of an ETV valve is determined. According to the scheme, the variable relation table corresponding to the engine mode of the current engine is called, calculation is conducted according to the conventional parameters of the engine and the control parameters corresponding to the conventional data in the variable relation table, and therefore the required opening degree of the ETV valve is determined. By means of the manner of determining the required opening degree of the ETV valve, the engine heat management effect and the exhaust control stability can be improved, and the engine exhaust treatment stability can be improved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to an engine control method and device. Background technique [0002] With the development of science and technology, for the automobile industry, automobiles are widely used in daily life. When the engine exhaust gas of the automobile is directly discharged, the engine exhaust gas is often treated through the after-treatment system to reduce the harmful gas in the engine exhaust gas. Oxygen in the air reacts, producing gases that cause air pollution. [0003] At present, the opening of the exhaust throttle valve is often adjusted in a closed loop according to the exhaust temperature of the engine, so that the energy change of the engine exhaust can be changed through the opening of the exhaust throttle valve, so as to achieve the control of the thermal management of the exhaust temperature. In order to make the exhaust gas processed by the aftertreatment system meet the engine emi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D9/00F02D9/08
CPCY02T10/40
Inventor 梁帅帅代子阳史彦晓
Owner WEICHAI POWER CO LTD
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