Method and device for reducing engine combustion noise

A combustion noise and engine technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of loud combustion noise and rough engine work, achieve short ignition lag period, avoid rough work, and reduce combustion noise Effect

Inactive Publication Date: 2019-03-22
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology

[0010] The purpose of the present invention is to provide a method and device for reducing engine combustion noise, which is used to solve the prob

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  • Method and device for reducing engine combustion noise
  • Method and device for reducing engine combustion noise
  • Method and device for reducing engine combustion noise

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[0042] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0043] Such as figure 2 Shown is the connection diagram of the device for reducing engine combustion noise of the present invention, which includes an acceleration state detection unit, an accelerator pedal angle sensor, a timer, a processor and an engine electronic control system ECU.

[0044] The acceleration state detection unit detects whether the vehicle is in an acceleration state, which can be a vehicle speed signal CAN unit, and judges whether the vehicle is in an acceleration state according to the vehicle speed information.

[0045] The accelerator pedal angle sensor collects the starting angle of the accelerator pedal under a certain accelerator pedaling action And accelerator pedal end angle The timer calculates the start time t of the a...

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Abstract

The invention relates to a method and device for reducing engine combustion noise. The method comprises the steps that when a vehicle operates in an acceleration mode, action information of an accelerator pedal under the conditions of accelerator pedal treading action, and the current accelerator pedal treading speed is obtained; a pilot oil injection amount corresponding to the current accelerator pedal treading speed is obtained according to stored engine pilot oil injection amount relations; and according to the pilot oil injection amount, an engine is controlled to perform pilot oil injection action. According to the method and device provided by the invention, it is guaranteed that the engine main injection ignition lag phase is the shortest under acceleration travelling conditions, an engine rough running situation caused by driving habits of a driver in the travelling process is avoided, the engine combustion noise is effectively reduced, noise inside and outside the vehicle issynchronously reduced during acceleration travelling of the whole vehicle, and the comfort of the whole vehicle is improved.

Description

technical field [0001] The invention belongs to the technical field of driving noise control, and in particular relates to a method and device for reducing engine combustion noise. Background technique [0002] With the progress of the times, the surrounding environment of the car is constantly changing, the road surface is getting flatter and the speed of the car is getting higher and higher, and the noise problem has gradually attracted everyone's attention and attention. Whether it is the impact of the noise outside the car on the surrounding residents, or the impact of the noise inside the car on the passengers, people have a strong desire to improve it. [0003] Accordingly, in order to solve this problem, the government has introduced increasingly strict regulations to control the noise generated by passing cars. However, this method is not a cure for the symptoms, and it is necessary to reduce the noise from the car itself. [0004] The noise sources during the driv...

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Application Information

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IPC IPC(8): F02D41/30
CPCF02D41/30
Inventor 陈志恒宁晓萍王占彬田杰安齐伸翼
Owner ZHENGZHOU YUTONG BUS CO LTD
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