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Method to adjust an oil control valve actuation response time using cylinder valve diagnostics

一种响应时间、汽缸阀的技术，应用在电气控制、燃烧发动机、发动机控制等方向，能够解决不包括等问题

Inactive Publication Date: 2018-05-25
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current engine systems do not include means for accurately detecting and / or correcting the time it takes for the fuel valve control system to respond after a command is given to deactivate / reactivate the intake and exhaust valves of the engine cylinders

Method used

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  • Method to adjust an oil control valve actuation response time using cylinder valve diagnostics
  • Method to adjust an oil control valve actuation response time using cylinder valve diagnostics
  • Method to adjust an oil control valve actuation response time using cylinder valve diagnostics

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Embodiment Construction

[0024] The following detailed description is merely exemplary in nature and is not intended to limit the embodiments or the application and uses thereof. Furthermore, there is no intention to be bound by any theory presented in the preceding background or the following detailed description.

[0025] According to the disclosed embodiment, figure 1 is a system diagram of an oil control valve system 100 for an engine according to aspects of the exemplary embodiment. Engine 110 includes six (6) cylinders configured for active fuel management operation in accordance with aspects of the exemplary method. It should be appreciated that engine 110 may include 4, 6, 8, 12, or other numbers of cylinders, wherein the method for adjusting fuel control valve actuation response time using cylinder valve diagnostics can be implemented without departing from the exemplary It is applied in the case of the scope of the example. The engine 110 may be an internal combustion engine (ICE), such a...

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PUM

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Abstract

A method to adjust an oil control valve actuation response time using cylinder valve diagnostic results includes commanding an engine cylinder to deactivate / reactive when conditions are met and then detecting if a deactivation / reactivation response time failure has occurred by analyzing the cylinder diagnostics results. If a predetermined number of failures are detected at the cylinder within a predetermined number of engine cycles then the engine controller operates to adjust the oil control valve response time to improve the response time accuracy.

Description

technical field [0001] The present invention relates generally to intake and exhaust valve control systems for internal combustion engines, and more particularly to a method for adjusting fuel control valve actuation response time using cylinder valve diagnostics. Background technique [0002] The fuel efficiency of an internal combustion engine can be greatly improved by changing the displacement of the engine. This allows maximum torque to be available when required, and can significantly reduce pumping losses and improve thermal efficiency by using a smaller displacement when maximum torque is not required. The most common method used today to implement variable displacement engines is to deactivate a group of cylinders substantially simultaneously. [0003] According to this approach, when it is desired to bypass the combustion event, the intake and exhaust valves associated with the deactivated cylinders remain closed and no fuel is injected. For example, a 6 cylinder...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D41/22F02D13/02F02D13/06
CPCF02D13/0253F02D13/06F02D41/22F02D41/0087F02D41/009F02D41/221F02D41/2403F02D2200/101F02D2200/1015Y02T10/40F02D41/00F02D41/1438F02D41/26
Inventor D·G·布伦南A·B·小瑞利B·K·科瓦尔奇克
Owner GM GLOBAL TECH OPERATIONS LLC