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Engine air inlet structure, engine air inlet control method and device

A technology of air intake structure and control method, which is applied in the direction of engine control, combustion engine, machine/engine, etc., which can solve the problems of insufficient braking power and achieve the effect of sufficient air volume and guaranteed braking power

Inactive Publication Date: 2019-12-10
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides an engine intake structure, an engine intake control method and device to overcome the problem of insufficient braking power during in-cylinder braking in the prior art

Method used

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  • Engine air inlet structure, engine air inlet control method and device
  • Engine air inlet structure, engine air inlet control method and device
  • Engine air inlet structure, engine air inlet control method and device

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Embodiment Construction

[0036] 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.

[0037] figure 1 It is a schematic diagram of an engine intake structure disclosed in an embodiment of the present invention, see figure 1 As shown, the engine intake structure may include:

[0038] The air filter 1, the supercharger 2, the intercooler 3 and the engine cylinder 4 connected in sequence also include an air compressor 5 connected in sequence, a cylinder 6, an intake butterfly valve 7 and a valve for controlling the intake butterfly valve 7 of th...

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Abstract

The invention discloses an engine air inlet structure and an engine air inlet control method and device. The method comprises the following steps that whether a current condition meets a first condition or not is determined, wherein the first condition includes that the braking force of an engine can be effectively transferred to a wheel and the air volume in an air cylinder can reach a first preset value; whether an emergency brake signal is received or not is judged under the condition that the condition items in the first condition are met; and if yes, an air inlet butterfly valve is controlled to open so as to release and introduce air in the air cylinder into an engine cylinder. According to the engine air inlet control method, after a whole vehicle is started, compressed air can be stored in the air cylinder, when the vehicle has an emergency brake state, the air in the air cylinder can be controlled to release and introduce into an air inlet pipe in front of the engine cylinder,so that in the case of emergency braking, the air in the engine cylinder is sufficient, and the braking power is ensured.

Description

technical field [0001] The present invention relates to brake control technology, more specifically, relates to an engine intake structure, engine intake control method and device. Background technique [0002] At the moment when the brake in the engine cylinder is activated, the air intake pressure is low after the intercooler, and due to factors such as the inertia of the intake system, the air intake of the cylinder increases slowly, resulting in insufficient air intake of the engine cylinder. Therefore, at the initial stage of braking in the engine cylinder, the amount of compressed air in the upward stroke of the piston is insufficient, resulting in insufficient braking power in the engine cylinder. This situation may lead to safety accidents in some emergency situations. Contents of the invention [0003] In view of this, the present invention provides an engine air intake structure, an engine air intake control method and device to overcome the problem of insuffici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B33/44F02D33/02
CPCF02B33/44F02B33/446F02D33/02
Inventor 尹东东朱江苏吕文芝刘刚姚泽光
Owner WEICHAI POWER CO LTD
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