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Vehicle-mounted ECU

A sensor, accelerator position technology, applied in engine ignition, spark ignition controller, mechanical control, etc., to reduce fuel consumption, prolong service life, and improve low-speed torque.

Inactive Publication Date: 2018-06-05
泉州市中研智能机电研究院有限公司
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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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Embodiment Construction

[0054] 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 of the embodiments of the present invention, not all of them. 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.

[0055] A variable compression ratio engine, which includes a variable compression ratio mechanism capable of changing the mechanical compression ratio, and makes the compression ratio when the engine operates at a low load completely different from the compression ratios when the engine operates at a medium load and at a high load, realizing To meet different compression ratios at different engine loads and different engine speeds. Thus, the service l...

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Abstract

The invention provides a vehicle-mounted ECU, which is characterized in that the first end of the vehicle-mounted ECU is connected with an accelerator position sensor, the second end is connected withan engine speed sensor, the third end is connected with a variable compression piston position sensor, the fourth end is connected with a motor, and the fifth end is connected with an ignition coil;when the throttle position sensor is larger than the engine speed sensor or when the throttle position sensor is not changed and on the ramp, when the engine speed sensor is lower than the throttle position sensor, the variable compression piston retracts into the cylinder head to reduce the compression ratio, and the engine power is increased; when the speed of the engine gradually rises to the same position with the throttle, the variable compression piston extends out of the cylinder head to move towards the cylinder combination surface to reduce the space of the combustion chamber to improve the compression ratio so as to achieve the purpose of reducing the increase power of the fuel.

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): F02D15/04F02B75/04F02P5/15
CPCF02B75/042F02D15/04F02D2200/101F02D2200/602F02D2700/03F02P5/1502Y02T10/40
Inventor 庄景阳
Owner 泉州市中研智能机电研究院有限公司
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