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Vehicle-mounted ECU

A sensor and accelerator position technology, applied in the field of gasoline engines, to achieve the effect of improving low-speed torque, increasing medium and high-speed power, and reducing fuel consumption

Inactive Publication Date: 2017-08-29
林培青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention proposes a variable compression ratio engine, which solves the problem of uniform compression ratio of different engine loads in the prior art

Method used

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  • Vehicle-mounted ECU
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Embodiment Construction

[0055] 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 creative efforts fall within the protection scope of the present invention.

[0056] An engine with electronically controlled variable compression ratio and fuel injection position, which includes a variable compression ratio mechanism capable of changing the mechanical compression ratio, and a fuel injection nozzle 810 that works synchronously with the telescoping mechanism, and makes the engine run at low load The compression ratio of the engine is completely different from the compression ratio and fuel injection position when the engine i...

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Abstract

The invention provides a vehicle-mounted ECU. The vehicle-mounted ECU is characterized in that a first end of the vehicle-mounted ECU is connected with an accelerator position sensor, a second end is connected with an engine rotating speed sensor, a third end is connected with a variable compression piston position sensor, a fourth end is connected with a motor, and a fifth end is connected with an oil nozzle; when the accelerator position sensor 1 is larger than the engine rotating speed sensor 1, or the accelerator position sensor 1 is not changed and positioned on a slope, and the engine rotating speed sensor 1 is lowered to be smaller than the accelerator position sensor 1, a variable compression piston shrinks back into a cylinder head to reduce a compression ratio so as to improve the engine power; and when the engine rotating speed is gradually increased to accord with the accelerator position 1, the variable compression piston extends out of the cylinder head to move to a cylinder combined surface to reduce the space of a combustion chamber so as to realize increment of the compression ratio to achieve the effects of reducing fuels and improving the power.

Description

technical field [0001] The present invention relates to a gasoline engine, in particular to an engine whose compression ratio can be changed according to engine load and rotation speed. Background technique [0002] The compression ratio of the engine refers to the ratio of the stroke of the working piston in the cylinder to the combustion chamber. The higher the compression ratio, the better the combustion efficiency. However, the higher the compression ratio, the higher the knocking of the engine, and the easier it is for the cylinder and piston to knock and wear. Especially under high load conditions, the power of the engine will drop instead. [0003] As the grade of gasoline gets higher and higher, the increase of octane number is to reduce the knocking caused by the high compression ratio. However, its effect is limited. It can only be controlled at 13:1. Of course, due to the refining and manufacturing process of gasoline in the same region, the compression ratio of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D43/00F02D15/04F02D41/40F02P5/152F02B23/10
CPCF02B23/10F02D15/04F02D37/02F02D41/401F02D2200/101F02D2200/602F02P5/152Y02T10/12
Inventor 林培青
Owner 林培青
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