Engine transient air-intake control system and control method

A technology of control system and control method, which is applied in the direction of engine control, combustion engine, machine/engine, etc. It can solve the problems that the engine power output cannot achieve good results, the air-fuel ratio cannot be effectively controlled, and the air-fuel ratio is out of balance. , to achieve the effect of improving the precise control of air-fuel ratio, meeting the transient intake demand, and improving the combustion process
CN102852625AActive Publication Date: 2013-01-02姜添棋
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
姜添棋
Publication Date
2013-01-02

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Abstract

The invention discloses an engine transient air-intake control system. The engine transient intake control system comprises a fan (3) and a control device, wherein the fan (3) is arranged above an air-intake pipeline (11) between an air inlet and an air-intake manifold and is used for adjusting the air flow strength of intake air and converting the air flow into vortex; and the control device is used for acquiring the state information of a vehicle and controlling the running speed of the fan (3) based on the state information of the vehicle. The invention also discloses a method for controlling such engine transient air-intake control system. The method comprises the steps of acquiring and processing the running state information of the vehicle through the control system, and sending out a command to control and adjust the rotating speed of the fan based on the current running state of the vehicle. With the adoption of the method provided by the invention, the air intake speed of an engine is increased, the vortex strength in a cylinder is improved, and the effect of mixing the oil and gas is improved; on the other hand, the air quality in the air-intake pipeline is regulated, the air supply of the engine under different working conditions is controlled, and the air-fuel ratio of the engine under different working conditions is precisely controlled, therefore, the combustion process is improved; and moreover, the fuel consumption and the exhaust emission are reduced while improving the power of the engine.
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Description

technical field

[0001] The invention belongs to the field of engine air intake control, and in particular relates to an engine transient air intake control system. At the same time, the invention also provides a control method based on the engine transient air intake control system. Background technique

[0002] At present, during the operation of any kind of engine, the air intake state of the intake pipeline is in a passive intake state, and the amount of intake air depends entirely on the intake efficiency of the engine when it is running or is forced to obtain by consuming the energy of the engine itself. Whether it is an ordinary naturally aspirated engine, a turbocharged engine, or an engine with a variable intake system, the intake system is a passive intake mode. Under different speed conditions, the air must pass through a certain length of intake pipe. Inflate air to each cylinder, resulting in pulsation of air quality under different speed conditions. The engine i...

Claims

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