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Supercharger control method and system

A control method and supercharger technology, applied in electrical control, engine control, fuel injection control, etc.

Active Publication Date: 2022-06-28
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to at least solve the problem that the supercharger adopts a fixed opening in the prior art

Method used

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  • Supercharger control method and system
  • Supercharger control method and system
  • Supercharger control method and system

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Experimental program
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Embodiment Construction

[0053] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0054] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" can also be intended to include the plural forms unless the context clearly dictates otherwise. The terms "comprising", "comprising", "containing" and "having" are inclusive and thus indicate the presenc...

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PUM

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Abstract

The invention belongs to the technical field of engines, and in particular relates to a supercharger control method and system. The supercharger control method includes judging whether the vehicle is in a braking state, and controlling the supercharger to adopt the first closed loop according to the vehicle being in a braking state. The control strategy adopts the second closed-loop control strategy to control the supercharger according to the non-braking state of the vehicle. According to the control method of the supercharger in the embodiment of the invention, the open-loop control strategy adopted by the supercharger in the prior art is changed to a closed-loop control strategy, so that the opening of the supercharger can be changed according to the working conditions of the vehicle to meet the The braking demand of the vehicle improves the braking ability of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a control method and system of a supercharger. Background technique [0002] This section provides merely background information related to the present disclosure and is not necessarily prior art. [0003] Now the Euro VI car products all have the function of in-cylinder braking. When the accelerator is released, the exhaust valve opens instantly when the piston is at the position near the upper pole in the compression stroke stage, releases the high-pressure gas, and then closes the exhaust valve. There is very little gas in the cylinder. When the piston moves from the upper pole to the lower end in the explosion (expansion) stage, the cylinder is in a state of negative pressure, and the gas will prevent the piston from descending, resulting in a torque action in the opposite direction of the crankshaft, thereby producing a braking effect. , The supercharger adopts ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D23/00F02D29/02F02D41/14F02D41/22
CPCF02D23/00F02D29/02F02D41/1401F02D41/0007F02D41/222F02D2041/1409F02D2200/04F02D2200/70F02D2200/703F02D2200/50Y02T10/40
Inventor 李云霞徐卫亮秦翠萍许帅
Owner WEICHAI POWER CO LTD