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Engine preignition monitoring method and related equipment

An engine and frequency technology, applied in mechanical equipment, engine control, combustion engine, etc., can solve problems such as difficult engine global monitoring, and achieve the effect of reducing maintenance costs, good safety and performance, and eliminating potential dangers

Active Publication Date: 2021-12-10
DONGFENG MOTOR GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing monitoring methods for engine pre-ignition are difficult to achieve global monitoring of engine pre-ignition to make adaptive adjustments to the vehicle

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  • Engine preignition monitoring method and related equipment
  • Engine preignition monitoring method and related equipment
  • Engine preignition monitoring method and related equipment

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Embodiment Construction

[0040] In order to better understand the technical solutions provided in the present specification, the technical solutions of the present specification embodiments will be described in detail below with reference to the accompanying drawings and specific embodiments, and the specific features of the present specification and the embodiments in the present specification are DETAILED DESCRIPTION OF THE INVENTION In the case of the present specification, in the case of unlafmed, the technical features of the present specification and the technical features of the present specification can be combined.

[0041] In this paper, a relationship term such as the first and second, etc. is only used to distinguish an entity or operation with another entity or an operational area, and there is not necessarily or implies that there is any such entity or operation. Actual relationship or order. Moreover, the term "comprising", "comprising" or any other variable is intended to cover non-exclusi...

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Abstract

The invention discloses an engine preignition monitoring method and related equipment, relates to the technical field of engines, and can realize global monitoring of preignition of an engine so as to carry out adaptive adjustment on a vehicle. The engine preignition monitoring method comprises the steps that the number of preignition times of each air cylinder of the engine is counted, the first number of preignition times and the second number of preignition times are obtained, the first number of preignition times is the number of preignition times of each air cylinder in one life cycle, and the second number of preignition times is the preignition times of each air cylinder in the current counting cycle; and the preignition phenomenon grade of the engine is judged on the basis of the first number of preignition times; and according to the preignition phenomenon grade and the second number of preignition times, torque limiting control is conducted on the engine.

Description

Technical field [0001] The present application relates to the field of engine technology, and more particularly to engine early resistance monitoring methods and related equipment. Background technique [0002] Overspeaking refers to the phenomenon that mixed gas has been burned in advance before the engine's cylinder mixture is ignited by the spark plug. Eternal resistance is usually accompanied by a sudden burst and a phenomenon of power falling and engine overheating. If the engine's overtemon is not serious, it may not cause harm, but severe morning resistance can lead to serious explosion. Since the early combustion will have a lot of damage to the engine, the early resistance phenomenon is considered to be the most important limit factor in the engine further shrinkage strengthening. [0003] However, in the prior art, after detecting early resistance, the ignition is usually adjusted by the electronically controlled unit to avoid the occurrence of continuous knocking combu...

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Application Information

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IPC IPC(8): F02D41/22F02D29/02
CPCF02D41/22F02D29/02Y02T10/40
Inventor 陈龙许瑞张德全戴敏
Owner DONGFENG MOTOR GRP